672913 has 2 divisors, whose sum is σ = 672914. Its totient is φ = 672912.

The previous prime is 672901. The next prime is 672937. The reversal of 672913 is 319276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 419904 + 253009 = 648^2 + 503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672913 is a prime.

It is not a weakly prime, because it can be changed into another prime (672943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336456 + 336457.

It is an arithmetic number, because the mean of its divisors is an integer number (336457).

2⁶⁷²⁹¹³ is an apocalyptic number.

It is an amenable number.

672913 is a deficient number, since it is larger than the sum of its proper divisors (1).

672913 is an equidigital number, since it uses as much as digits as its factorization.

672913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 28.

The square root of 672913 is about 820.3127452381. The cubic root of 672913 is about 87.6300325151.

The spelling of 672913 in words is "six hundred seventy-two thousand, nine hundred thirteen".